taro/src/utils/tools.ts

import Taro from "@tarojs/taro";

export function alphaToHex(alpha) {
    var alphaValue = Math.round(alpha * 255); // 将透明度乘以255并四舍五入
    var hexValue = alphaValue.toString(16); // 将整数转换为十六进制字符串
    if (hexValue.length === 1) {
        hexValue = "0" + hexValue; // 如果十六进制字符串只有一位，补零
    }
    return hexValue;
}

export function rgbaToRgb(rgba) {
    if (rgba.startsWith("rgba")) {
        // 提取 RGBA 值
        const regex = /rgba\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+(\.\d+)?)\s*\)/;
        const matches = rgba.match(regex);

        if (matches && matches.length === 6) {
            const red = parseInt(matches[1]);
            const green = parseInt(matches[2]);
            const blue = parseInt(matches[3]);
            const alpha = parseFloat(matches[4]);

            // 计算 RGB 值
            const rgbRed = Math.round(red * alpha);
            const rgbGreen = Math.round(green * alpha);
            const rgbBlue = Math.round(blue * alpha);

            return `rgb(${rgbRed}, ${rgbGreen}, ${rgbBlue})`;
        }
    }

    // 如果无法解析或不是 RGBA 值，则返回原始值
    return rgba;
}

export function rpxToPx(n: number) {
    var rate = Taro.getSystemInfoSync().windowWidth / 750;
    return n * rate;
}

export function vibrate(type?: string) {
    if (process.env.TARO_ENV == 'rn') {
        const ReactNativeHapticFeedback = require("react-native-haptic-feedback")
        // Optional configuration
        const options = {
            enableVibrateFallback: true,
            ignoreAndroidSystemSettings: false,
        };

        // Trigger haptic feedback
        ReactNativeHapticFeedback.trigger("impactLight", options);
    }
    else {
        Taro.vibrateShort({
            type: 'medium'
        })
    }
}


//微信sdk版本比较
export function compareVersion(v1, v2) {
    v1 = v1.split('.')
    v2 = v2.split('.')
    const len = Math.max(v1.length, v2.length)

    while (v1.length < len) {
        v1.push('0')
    }
    while (v2.length < len) {
        v2.push('0')
    }

    for (let i = 0; i < len; i++) {
        const num1 = parseInt(v1[i])
        const num2 = parseInt(v2[i])

        if (num1 > num2) {
            return 1
        } else if (num1 < num2) {
            return -1
        }
    }
    return 0
}

export function getTimezone() {
    var split = new Date().toString().split(' ');
    var timeZoneFormatted = '';
    split.map(item => {
        if (item.indexOf('GMT') != -1) {
            timeZoneFormatted = item;
        }
    })
    return timeZoneFormatted;
}

export function getTimezoneName(){
    var split = new Date().toString().split('(');
    if (split.length < 2) {
        return '';
    }
    return split[1].split(')')[0];
    
}